Egleston

Thomas, an American mineralogist; born in New York city, Dec. 9, 1832; was graduated at Yale College in 1854, and at the School of Mines in Paris in 1860; returned to the United States in 1861; and soon afterward was appointed director of the mineralogical collection and laboratory of the Smithsonian Institution in Washington. He established the School of Mines as ¥ department of Columbia College, New York city; and was Profe or of Mineralogy and Metallurgy there in 1864-1897. He was one of the founders of the American Institute of Mining Engineers, the American Meteorological Society and the societies of Mechanical and Electrical Engineers. He died in New York city, Jan. 15, 1900.